The present invention relates to a kind of regions (33) in air-conditioning device (1) room to be fitted with air-conditioning equipment. The air-conditioning device has a shell (20), with air supply (21) and air (22). In shell (20), air (21) and air discharge (22) are formed between flow path (25). In flow path (25), at least one heat exchanger (7), air blower (8), mechanism is provided for excited gas (5). Moreover, surface (10) are provided in flow path (25), the downstream of the ozone content excited gas for the catalytic decomposition being disposed for, these mechanisms (5) is provided with for generating excited gasoline
